Title:
LIGHT EMITTING DEVICE
Document Type and Number:
Japanese Patent JP2016162682
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a light emitting device capable of suppressing lowering of a light amount of fluorescent light radiated with respect to an irradiation region, while suppressing irradiation of laser beams to the irradiation region more surely.SOLUTION: A light emitting device 10 includes a laser beam source 20, a control unit 30, a fluorescent body 50, a substrate 70, and a detection unit 100. On the substrate 70, a plurality of first micro-mirrors 72 are formed on one surface 70a for reflecting the fluorescent light to an irradiation region. The detection unit 100 detects laser beams. The control unit 30, in the case where the detection unit 100 has detected the laser beams, stops emission of the laser beams by the laser beam source 20. On the substrate 70, a second micro-mirror 74 is formed on the one surface 70a arranged on an optical axis of the laser beam source 20 and for reflecting the laser beams to the detection unit 100. The detection unit 100 is arranged being deviated from a first path of the fluorescent light between the fluorescent body 50 and the first micro-mirror 72, and a second path of the fluorescent light between the first micro-mirror 72 and the irradiation region.SELECTED DRAWING: Figure 5
Inventors:
TANAKA KENICHI
Application Number:
JP2015042661A
Publication Date:
September 05, 2016
Filing Date:
March 04, 2015
Export Citation:
Assignee:
DENSO CORP
International Classes:
F21S8/10; B60Q1/04; F21S8/12; F21V7/00; F21V23/00; F21V25/04; G02B26/08; G02B27/01; H01S3/00; H01S5/022
Attorney, Agent or Firm:
Kazuyuki Yahagi
Taihei Nonobe
Takanori Kubo
Taihei Nonobe
Takanori Kubo
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